2b03b41d6a
* mi/mi-cmd-disas.c: Ditto. * mi/mi-cmd-env.c: Ditto. * mi/mi-cmd-file.c: Ditto. * mi/mi-cmd-stack.c: Ditto. * mi/mi-cmd-target.c: Ditto. * mi/mi-cmd-var.c: Ditto. * mi/mi-cmds.c: Ditto. * mi/mi-cmds.h: Ditto. * mi/mi-console.c: Ditto. * mi/mi-getopt.c: Ditto. * mi/mi-getopt.h: Ditto. * mi/mi-interp.c: Ditto. * mi/mi-main.c: Ditto. * mi/mi-out.c: Ditto. * mi/mi-parse.c: Ditto. * mi/mi-parse.h: Ditto. * mi/mi-symbol-cmds.c: Ditto. * mi/mi-getopt.h: Move mi_opt struct up. * mi/mi-main.c (captured_mi_execute_command): Remove redundant return. * mi/mi-out.c (_initialize_mi_out): Remove empty initialize.
459 lines
13 KiB
C
459 lines
13 KiB
C
/* MI Command Set - stack commands.
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Copyright (C) 2000, 2002-2005, 2007-2012 Free Software Foundation,
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Inc.
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Contributed by Cygnus Solutions (a Red Hat company).
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "target.h"
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#include "frame.h"
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#include "value.h"
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#include "mi-cmds.h"
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#include "ui-out.h"
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#include "symtab.h"
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#include "block.h"
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#include "stack.h"
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#include "dictionary.h"
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#include "gdb_string.h"
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#include "language.h"
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#include "valprint.h"
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#include "exceptions.h"
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enum what_to_list { locals, arguments, all };
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static void list_args_or_locals (enum what_to_list what,
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enum print_values values,
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struct frame_info *fi);
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/* Print a list of the stack frames. Args can be none, in which case
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we want to print the whole backtrace, or a pair of numbers
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specifying the frame numbers at which to start and stop the
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display. If the two numbers are equal, a single frame will be
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displayed. */
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void
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mi_cmd_stack_list_frames (char *command, char **argv, int argc)
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{
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int frame_low;
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int frame_high;
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int i;
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struct cleanup *cleanup_stack;
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struct frame_info *fi;
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if (argc > 2 || argc == 1)
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error (_("-stack-list-frames: Usage: [FRAME_LOW FRAME_HIGH]"));
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if (argc == 2)
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{
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frame_low = atoi (argv[0]);
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frame_high = atoi (argv[1]);
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}
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else
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{
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/* Called with no arguments, it means we want the whole
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backtrace. */
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frame_low = -1;
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frame_high = -1;
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}
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/* Let's position fi on the frame at which to start the
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display. Could be the innermost frame if the whole stack needs
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displaying, or if frame_low is 0. */
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for (i = 0, fi = get_current_frame ();
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fi && i < frame_low;
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i++, fi = get_prev_frame (fi));
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if (fi == NULL)
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error (_("-stack-list-frames: Not enough frames in stack."));
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cleanup_stack = make_cleanup_ui_out_list_begin_end (current_uiout, "stack");
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/* Now let's print the frames up to frame_high, or until there are
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frames in the stack. */
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for (;
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fi && (i <= frame_high || frame_high == -1);
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i++, fi = get_prev_frame (fi))
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{
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QUIT;
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/* Print the location and the address always, even for level 0.
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If args is 0, don't print the arguments. */
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print_frame_info (fi, 1, LOC_AND_ADDRESS, 0 /* args */ );
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}
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do_cleanups (cleanup_stack);
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}
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void
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mi_cmd_stack_info_depth (char *command, char **argv, int argc)
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{
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int frame_high;
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int i;
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struct frame_info *fi;
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if (argc > 1)
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error (_("-stack-info-depth: Usage: [MAX_DEPTH]"));
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if (argc == 1)
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frame_high = atoi (argv[0]);
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else
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/* Called with no arguments, it means we want the real depth of
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the stack. */
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frame_high = -1;
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for (i = 0, fi = get_current_frame ();
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fi && (i < frame_high || frame_high == -1);
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i++, fi = get_prev_frame (fi))
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QUIT;
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ui_out_field_int (current_uiout, "depth", i);
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}
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static enum print_values
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parse_print_values (char *name)
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{
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if (strcmp (name, "0") == 0
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|| strcmp (name, mi_no_values) == 0)
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return PRINT_NO_VALUES;
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else if (strcmp (name, "1") == 0
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|| strcmp (name, mi_all_values) == 0)
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return PRINT_ALL_VALUES;
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else if (strcmp (name, "2") == 0
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|| strcmp (name, mi_simple_values) == 0)
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return PRINT_SIMPLE_VALUES;
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else
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error (_("Unknown value for PRINT_VALUES: must be: \
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0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
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mi_no_values, mi_all_values, mi_simple_values);
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}
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/* Print a list of the locals for the current frame. With argument of
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0, print only the names, with argument of 1 print also the
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values. */
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void
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mi_cmd_stack_list_locals (char *command, char **argv, int argc)
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{
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struct frame_info *frame;
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if (argc != 1)
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error (_("-stack-list-locals: Usage: PRINT_VALUES"));
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frame = get_selected_frame (NULL);
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list_args_or_locals (locals, parse_print_values (argv[0]), frame);
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}
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/* Print a list of the arguments for the current frame. With argument
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of 0, print only the names, with argument of 1 print also the
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values. */
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void
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mi_cmd_stack_list_args (char *command, char **argv, int argc)
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{
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int frame_low;
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int frame_high;
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int i;
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struct frame_info *fi;
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struct cleanup *cleanup_stack_args;
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enum print_values print_values;
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struct ui_out *uiout = current_uiout;
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if (argc < 1 || argc > 3 || argc == 2)
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error (_("-stack-list-arguments: Usage: "
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"PRINT_VALUES [FRAME_LOW FRAME_HIGH]"));
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if (argc == 3)
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{
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frame_low = atoi (argv[1]);
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frame_high = atoi (argv[2]);
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}
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else
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{
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/* Called with no arguments, it means we want args for the whole
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backtrace. */
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frame_low = -1;
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frame_high = -1;
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}
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print_values = parse_print_values (argv[0]);
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/* Let's position fi on the frame at which to start the
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display. Could be the innermost frame if the whole stack needs
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displaying, or if frame_low is 0. */
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for (i = 0, fi = get_current_frame ();
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fi && i < frame_low;
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i++, fi = get_prev_frame (fi));
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if (fi == NULL)
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error (_("-stack-list-arguments: Not enough frames in stack."));
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cleanup_stack_args
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= make_cleanup_ui_out_list_begin_end (uiout, "stack-args");
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/* Now let's print the frames up to frame_high, or until there are
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frames in the stack. */
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for (;
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fi && (i <= frame_high || frame_high == -1);
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i++, fi = get_prev_frame (fi))
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{
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struct cleanup *cleanup_frame;
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QUIT;
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cleanup_frame = make_cleanup_ui_out_tuple_begin_end (uiout, "frame");
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ui_out_field_int (uiout, "level", i);
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list_args_or_locals (arguments, print_values, fi);
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do_cleanups (cleanup_frame);
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}
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do_cleanups (cleanup_stack_args);
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}
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/* Print a list of the local variables (including arguments) for the
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current frame. ARGC must be 1 and ARGV[0] specify if only the names,
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or both names and values of the variables must be printed. See
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parse_print_value for possible values. */
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void
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mi_cmd_stack_list_variables (char *command, char **argv, int argc)
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{
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struct frame_info *frame;
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if (argc != 1)
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error (_("Usage: PRINT_VALUES"));
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frame = get_selected_frame (NULL);
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list_args_or_locals (all, parse_print_values (argv[0]), frame);
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}
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/* Print single local or argument. ARG must be already read in. For
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WHAT and VALUES see list_args_or_locals.
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Errors are printed as if they would be the parameter value. Use
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zeroed ARG iff it should not be printed according to VALUES. */
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static void
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list_arg_or_local (const struct frame_arg *arg, enum what_to_list what,
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enum print_values values)
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{
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struct cleanup *cleanup_tuple = NULL;
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struct ui_out *uiout = current_uiout;
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struct ui_stream *stb = ui_out_stream_new (uiout);
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gdb_assert (!arg->val || !arg->error);
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gdb_assert ((values == PRINT_NO_VALUES && arg->val == NULL
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&& arg->error == NULL)
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|| values == PRINT_SIMPLE_VALUES
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|| (values == PRINT_ALL_VALUES
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&& (arg->val != NULL || arg->error != NULL)));
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gdb_assert (arg->entry_kind == print_entry_values_no
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|| (arg->entry_kind == print_entry_values_only
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&& (arg->val || arg->error)));
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if (values != PRINT_NO_VALUES || what == all)
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cleanup_tuple = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
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fputs_filtered (SYMBOL_PRINT_NAME (arg->sym), stb->stream);
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if (arg->entry_kind == print_entry_values_only)
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fputs_filtered ("@entry", stb->stream);
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ui_out_field_stream (uiout, "name", stb);
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if (what == all && SYMBOL_IS_ARGUMENT (arg->sym))
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ui_out_field_int (uiout, "arg", 1);
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if (values == PRINT_SIMPLE_VALUES)
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{
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check_typedef (arg->sym->type);
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type_print (arg->sym->type, "", stb->stream, -1);
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ui_out_field_stream (uiout, "type", stb);
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}
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if (arg->val || arg->error)
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{
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volatile struct gdb_exception except;
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if (arg->error)
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except.message = arg->error;
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else
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{
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/* TRY_CATCH has two statements, wrap it in a block. */
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TRY_CATCH (except, RETURN_MASK_ERROR)
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{
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struct value_print_options opts;
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get_raw_print_options (&opts);
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opts.deref_ref = 1;
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common_val_print (arg->val, stb->stream, 0, &opts,
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language_def (SYMBOL_LANGUAGE (arg->sym)));
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}
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}
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if (except.message)
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fprintf_filtered (stb->stream, _("<error reading variable: %s>"),
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except.message);
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ui_out_field_stream (uiout, "value", stb);
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}
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ui_out_stream_delete (stb);
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if (values != PRINT_NO_VALUES || what == all)
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do_cleanups (cleanup_tuple);
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}
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/* Print a list of the locals or the arguments for the currently
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selected frame. If the argument passed is 0, printonly the names
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of the variables, if an argument of 1 is passed, print the values
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as well. */
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static void
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list_args_or_locals (enum what_to_list what, enum print_values values,
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struct frame_info *fi)
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{
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struct block *block;
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struct symbol *sym;
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struct dict_iterator iter;
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struct cleanup *cleanup_list;
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struct ui_stream *stb;
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struct type *type;
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char *name_of_result;
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struct ui_out *uiout = current_uiout;
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stb = ui_out_stream_new (uiout);
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block = get_frame_block (fi, 0);
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switch (what)
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{
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case locals:
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name_of_result = "locals";
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break;
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case arguments:
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name_of_result = "args";
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break;
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case all:
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name_of_result = "variables";
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break;
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default:
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internal_error (__FILE__, __LINE__,
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"unexpected what_to_list: %d", (int) what);
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}
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cleanup_list = make_cleanup_ui_out_list_begin_end (uiout, name_of_result);
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while (block != 0)
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{
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ALL_BLOCK_SYMBOLS (block, iter, sym)
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{
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int print_me = 0;
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switch (SYMBOL_CLASS (sym))
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{
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default:
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case LOC_UNDEF: /* catches errors */
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case LOC_CONST: /* constant */
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case LOC_TYPEDEF: /* local typedef */
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case LOC_LABEL: /* local label */
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case LOC_BLOCK: /* local function */
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case LOC_CONST_BYTES: /* loc. byte seq. */
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case LOC_UNRESOLVED: /* unresolved static */
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case LOC_OPTIMIZED_OUT: /* optimized out */
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print_me = 0;
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break;
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case LOC_ARG: /* argument */
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case LOC_REF_ARG: /* reference arg */
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case LOC_REGPARM_ADDR: /* indirect register arg */
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case LOC_LOCAL: /* stack local */
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case LOC_STATIC: /* static */
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case LOC_REGISTER: /* register */
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case LOC_COMPUTED: /* computed location */
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if (what == all)
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print_me = 1;
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else if (what == locals)
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print_me = !SYMBOL_IS_ARGUMENT (sym);
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else
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print_me = SYMBOL_IS_ARGUMENT (sym);
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break;
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}
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if (print_me)
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{
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struct symbol *sym2;
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struct frame_arg arg, entryarg;
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if (SYMBOL_IS_ARGUMENT (sym))
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sym2 = lookup_symbol (SYMBOL_LINKAGE_NAME (sym),
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block, VAR_DOMAIN,
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(int *) NULL);
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else
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sym2 = sym;
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gdb_assert (sym2 != NULL);
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memset (&arg, 0, sizeof (arg));
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arg.sym = sym2;
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arg.entry_kind = print_entry_values_no;
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memset (&entryarg, 0, sizeof (entryarg));
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entryarg.sym = sym2;
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entryarg.entry_kind = print_entry_values_no;
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switch (values)
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{
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case PRINT_SIMPLE_VALUES:
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type = check_typedef (sym2->type);
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if (TYPE_CODE (type) != TYPE_CODE_ARRAY
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&& TYPE_CODE (type) != TYPE_CODE_STRUCT
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&& TYPE_CODE (type) != TYPE_CODE_UNION)
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{
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case PRINT_ALL_VALUES:
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read_frame_arg (sym2, fi, &arg, &entryarg);
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}
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break;
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}
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if (arg.entry_kind != print_entry_values_only)
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list_arg_or_local (&arg, what, values);
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if (entryarg.entry_kind != print_entry_values_no)
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list_arg_or_local (&entryarg, what, values);
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xfree (arg.error);
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xfree (entryarg.error);
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}
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}
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if (BLOCK_FUNCTION (block))
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break;
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else
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block = BLOCK_SUPERBLOCK (block);
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}
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do_cleanups (cleanup_list);
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ui_out_stream_delete (stb);
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}
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void
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mi_cmd_stack_select_frame (char *command, char **argv, int argc)
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{
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if (argc == 0 || argc > 1)
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error (_("-stack-select-frame: Usage: FRAME_SPEC"));
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select_frame_command (argv[0], 1 /* not used */ );
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}
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void
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mi_cmd_stack_info_frame (char *command, char **argv, int argc)
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{
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if (argc > 0)
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error (_("-stack-info-frame: No arguments allowed"));
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print_frame_info (get_selected_frame (NULL), 1, LOC_AND_ADDRESS, 0);
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}
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